CVE-2025-55181

Sending an HTTP request/response body with greater than 2^31 bytes triggers an infinite loop in proxygen::coro::HTTPQuicCoroSession which blocks the backing event loop and unconditionally appends data to a std::vector per-loop iteration. This issue leads to unbounded memory growth and eventually causes the process to run out of memory.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/facebook/proxygen/commit/17689399ef99b7c3d3a8b2b768b1dba1a4b72f8f	Patch
https://www.facebook.com/security/advisories/cve-2025-55181	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:facebook:proxygen:*:*:*:*:*:*:*:*

History

18 Oct 2026, 17:10

Type	Values Removed	Values Added
Summary		(es) Enviar un cuerpo de solicitud/respuesta HTTP con más de 2^31 bytes desencadena un bucle infinito en proxygen::coro::HTTPQuicCoroSession que bloquea el bucle de eventos subyacente y adjunta datos incondicionalmente a un std::vector por cada iteración del bucle. Este problema conduce a un crecimiento ilimitado de la memoria y eventualmente hace que el proceso se quede sin memoria.

Information

Published : 2025-12-02 22:16

Updated : 2026-10-18 17:10

NVD link : CVE-2025-55181

Mitre link : CVE-2025-55181

CVE.ORG link : CVE-2025-55181

JSON object : View

Products Affected

facebook

proxygen

CWE

CWE-834

Excessive Iteration

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